New Zealand Study Shows E-Cigarette Vapor is a Safe Alternative to Cigarettes

Although this study was funded by a specific E-Cigarette maker, they give comprehensive and convincing analysis of various aspects of E-Cigarette vapor. Among the findings: "Propylene glycol (PG) is virtually non-toxic", that, while some toxicants have been found, they are "at levels below those determined to be harmful, and well below the minimum risk levels accepted by the US Public Health Service and OSHA", and that "lacking any active ingredient or any gaseous products of combustion, the PG mist or ‘smoke’ is not harmful to bystanders."